Meanwhile, Walter bursts into a tent and tells the befuddled biohazard worker that he needs at least half-a-dozen of the blood or tissue or whatever samples the guy has, and he demands to be taken to the centrifuge. Dude is all, "Excuse me? Who are you.
Aaaand the next thing we know, Astrid is telling Broyles that Walter has been arrested. It's like the science museum all over again, this time with the possibility of jail time!
McFadden and Broyles walk into the tent where a couple of New England's finest have Walter handcuffed behind his back, one of them explaining that Walter breached the security lab: "Claims he's FBI, but he's got no credentials or identification." Broyles backs up Walter's story, so the cops let him go. Walter anxiously says he needs to get back to his lab with a blood sample so he can determine what pathogen they're dealing with. He gets into a grouchy credentials-off with McFadden, who ought to win, because he was also President John Keeler in 24. Well, what happens is McFadden is quite reasonable yet firm, while Walter implies McFadden is a small-minded bureaucrat. Broyles is all, "That's not helping," to Walter, who does apologize. And then Broyles vouches for Walter, who McFadden grants some samples to, but Walter's got to be accompanied.
Inside, Olivia's having no luck trying to track down VandenKemp in the database. "But he must have been here to see somebody. How far back did you go?" Peter asks. Olivia says she went back two months.
Peter stops to look around at all the office workers on their phones, and he notes they're calling their families: "Wanna call your sister? Just to let her know what's going on?" he asks Olivia, who pauses briefly before not responding and just going right back to work. And she notes that Ames had two appointments this morning, but cleared his calendar at the last minute yesterday, but was still here today anyway. And before their annoying argument over whether it means something or not goes on TOO too long, Det. Kassel comes over to tell them they've got a problem.
And by "problem," he means a dying woman: one of the office workers seated on the floor in a hallway, nose bleeding. "What's happening to me?" she asks, like HOW DID YOU MISS WHAT HAPPENS TO YOU, LADY, and Peter gets her all nice and comfortable, like maybe she can fall in love with him like the teenager did in "Unearthed", and Olivia goes to get her some water, and then Peter leaves and Olivia's still there and she asks Peter, "So how much time do you think she has?" Peter points out the courier was dead half-an-hour after giving VandenKamp CPR. And maybe she doesn't have time left, so maybe Olivia could just get her the damn water she promised.
Then a gaggle of office workers shuffle over to find out what's going on, and the one they call Elaine points out that Linda didn't get any of the blood anywhere near her, and then they're bickering for a few moments, and Peter tries to calm everyone down. Meanwhile, Olivia takes advantage of the confusion to ask Ames to talk to her one on one.
She says she knows VandenKamp was here to see him, so what's up with that? Ames says the guy came by to try to sell them some information from one of their competitors, something to do with a recent reserve field, but he wouldn't say what it was: "All he said was, 'I have something to show you.'" Olivia asks where the information is, and Ames says he didn't know, since VandenKamp didn't actually have anything with him. Ames says he knows he's broken a dozen federal laws, but he'd rather go to prison than die here. Olivia snaps, "It may be too late to trade one for the other now, Mister Ames." Outside, a bustling cottage industry of disease control has sprung up around the building.
Over the phone, Broyles tells Olivia that they've discovered that VandenKemp was an oil consultant who arrived at Logan three days ago from Dubai. They've already contacted most of the passengers on board, with no one showing any signs of infection. Olivia asks if they've been able to track his movements, and Walter says he was staying at a Continental Inn. "No symptoms reported there, either, but also no indication of any information he was selling." I don't buy that the agents were able to sort through all the bacteria and viruses present on any hotel bed duvet that quickly. Seriously! Watch an investigative piece sometime; you'll sleep with your clothes on in hotels for the rest of your life. Olivia asks if Walter's been able to identify the virus. He hasn't, but Broyles promises to let her know.
Walter's working away in his lab with Astrid and the CDC guy, who's probably unaware that he's as likely to be a test subject as an assistant whenever Walter's around. Walter explains to Astrid that if they can isolate the strain, they may be able to understand the virus's "personality," and Astrid is all, "Silly Walter! Viruses aren't people!" and Walter explains that viruses seem to have minds of their own: "The rabies virus can't survive in water. So it inflicts its host with a paralyzing fear of water." Astrid thinks that sounds silly, but it's worth pointing out that rabies is also known as hydrophobia. Anyway, Walter delivers a little speech about the unbelievability of viruses and how they deny our definitions of living and dead, and how their only function is to survive: "And they use us as a vehicle to do so. It's the folly of humans to believe we're at the top of the food chain. In truth, viruses are."
Meanwhile, the CDC guy, who appears to be the one actually working instead of blathering on about whatever, pulls a sample from the centrifuge and says the strain won't isolate, because the sample was too fragile. Walter says he was afraid of that, but the good news is that he's pretty sure the virus isn't airborne: "If it were, there'd be many more people showing signs of infection in that building. We need a better sample." Not airborne, other than the victims spewing their infected blood all over everyone, I suppose.
Meanwhile, Peter and Olivia are chatting about the case, like what exactly is Detective Kassel actually DOING, and Olivia fills Peter in on what Broyles just told her. Peter asks if she called Rachel, and Olivia says she didn't try: "She just went through all this stuff with me in the hospital, and she's still having nightmares about me being dead. What's the point in scaring her again? We are gonna get out of this," she says, because she's already filmed several more episodes that Fringe still has in the can, but I'd just like to say that if one of my siblings neglected to give me a heads-up that THEY MIGHT DIE then they pretty well BETTER DIE because I WILL KILL THEM. Peter says it's just like Olivia to try to protect her sister: "I thought that was the point of having people who care about you in your life. To have someone to talk to when you're scared," says Peter. Olivia explains that she just saw Up in the Air over the weekend and now never wants to get close to anyone ever again, although she did find Anna Kendrick just delightful.
Peter and Olivia stare silently at each other for about eight hours, and then Olivia notices, behind them, the receptionist standing there looking at them. She doesn't say anything, then eventually turns and walks away. "She's out. The receptionist," says Olivia, and she and Peter get up to follow her. They lose her in the office's halls and corridors, so Olivia and Peter split up, with Peter winding up in the reception area, and all of a sudden the receptionist is screaming in Peter's face, and she just came out of nowhere so I guess part of the virus's "personality" is that it turns you into a ninja, and Peter, startled, sl